<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
body {
  font-size: 10px;
}
div {
  width: 100px;
  height: 200px;
  margin: 5px;
  border: 1px solid silver;
  display: inline-block;
  vertical-align: top;
}
.vlr {
  writing-mode: vertical-lr;
}
.vrl {
  writing-mode: vertical-rl;
}
p {
  inline-size: 100%;
  text-indent: 20%;
  margin: 0;
}
span {
  display: inline-block;
  width: 20px;
  height: 20px;
  background: green;
}
</style>
</head>
<body>
<div> <p><span></span></p> </div>
<div dir="rtl"> <p><span></span></p> </div>
<div class="vlr"> <p><span></span></p> </div>
<div class="vlr" dir="rtl"> <p><span></span></p> </div>
<div class="vrl"> <p><span></span></p> </div>
<div class="vrl" dir="rtl"> <p><span></span></p> </div>
<br>
<div> <p><span></span></p> </div>
<div> <p dir="rtl"><span></span></p> </div>
<div> <p class="vlr"><span></span></p> </div>
<div> <p class="vlr" dir="rtl"><span></span></p> </div>
<div> <p class="vrl"><span></span></p> </div>
<div> <p class="vrl" dir="rtl"><span></span></p> </div>
</body>
</html>
